Combination washing machine and sink



R. o. W)ASSMER 2,253,965

COMBINATION WASHING MACHINE AND SINK Aug. 26, 1941.

Filed March 12, 1940 INVENTOR Rudol Obfusner ATTORNEY Patented Aug. 26, 1941 COMBINATION WASHING MACHINE SINK Rudolph o. Brooklyn, my.- 7 Application March 12, 1940, Serial No. 853,507

9 This invention relates to new and useful improvements 'in a combination clothes washing machine and wash tub or wash tub and sink combination.

More specifically, the invention proposes the construction of a washing machine adapted to be mounted on the bottom wall of a wash tub or 'upon the bottom wail of the wash tub of, a combination wash tub and sink.

Still further it is proposed to characterize the Q washing machine by a motor located beneath said bottom wall and having a stem extending into said wash tub and upon which a wash agitating member is adapted to be releasably mounted in a manner to permit the same to be used for washing clothes when desired.

Still further it is proposed toso characterize the' connection between the drive shaft of the motor and wash agitating member so as to permit water to pass upward through the agitating Iiig. 6 is a bottom elevational view of the agitating member." I

Fig. 7 is a view looking'in the direction of the line 1-4 of Fig. 3.

The combination washingmachine, according to this invention, is adapted to housed on a stationary wash tub or a stationary combination washtubandsink. Inthe drawingthewash'ins machineis shown appliedto awashtubandsink II which is hung upon a convenient wall i I. This combination comprises awash tub side It and a sink side II". A back it extends upwards from both the wash tub side II and the slnkside ill and provides a means for conveniently hanging the combination wash tub and sink. A double faucet it having a hot water tap l2 and a cold water tap I2 is also provided for the combination wash tub and sink. This faucet II has-a member and dispense therefrom during the agi- I tating process in a manner to increase the washing efficiency of the agitating member.

Still further it is proposed to have the top end of the drive shaft flush with the top face of the bottom wall and to provide the drive shaft with a disc slidably mounted thereon and urged into a normal position in which its top face will be flush with the top face of the bottom wall and the top end of said drive shaft in a manner to provide a flush top face in said wash tub when the agitating member is removed therefrom.

For further comprehension. of the invention,"

and of the objects and advantages thereof, reference will be had to the following description and accompanying drawing, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawing. forming a material part of this disclosure:

Fig. 1 is an elevational view of a combination wash tub and sink having a washing machine according to this invention applied thereto.

Fig. 2 is an enlarged vertical sectional view of a portion of Fig. 1.

' Fig. 3 is a view similar to a portion of Fig. 2

. but illustrating the position of the parts with the wash agitator removed.

Fig. 4 is an elevational view of the top end of the drive shaft.

single outlet l2 which is pivotally mounted and which is adapted to be turned to direct the water either into the wash tub II or the sink III".

The washing machine is characterized by a drive mechanism having a vertically extending shaft It extending through the bottom wall of the wash tub II and having its top end flush with the top face of the bottom wall of the wash tub as shown in Fig. 3. This vertical drive shaft it extends from a box ll mounted upon the bottom of the wash tub II by means of several straps II. This box it houses. a combination motor, gear reduction unit, and pump. The bottom wail of the wash tub I0 is provided with an enlarged opening ill" into whichthe drive shaft "extends.

A disc is isslidably mounted upon the top end of the drive shaft and is keyed thereto to rotate therewith. The disc I I is provided with an exwith the top face of the bottom wall of the tub l0 and flush with the top end of the drive shaft It for providing a smooth surface on the bottom wall of the tub III, as shown in Fix. 3.

A. resilient means is provided for holding the disc in its normal raised position. Zlhis means comprises an expansion spring l8 coaxially mounted upon the shaft It and which operates between the bottom wall of the opening Il and the bottom face of the disc I.

Awashagltatingmember ills adaptedto be mounted upon the top end of the drive shaft i2.

This wash agitating member comprises a vertical stem I! provided at its top end with a plurality of outwardly extending arms I! upon the free end of each of which there is mounted a hollow cup-shaped member 20. The bottom end of the vertical stem is is provided with a socket portion I which is adapted to engage over the top end of the drive shaft It. The top end of the drive shaft is on diametrically opposite sides is provided with bayonet slots 2|. Each bayonet slot comp-ises a vertical portion 2| extending downwards from the top edge of the drive shaft i2 and continuing into a horizontal portion 2|".

Each horizontal portion 2| continues into an upwardly extending portion 2| extending parallel to the section 2| and partially towards the top end of the drive shaft ll. The socket end of the wash agitating member I! is provided with a pair of inwardly extending pins 22 which are adapted to cooperate with the bayonet slots 2| for holding the wash agitating member in position. The socket |9 is further provided with a rubber member 22 which is adapted to encircle the top end of the hive shaft l2 and seal the adjacent faces thereii'.

For engaging the socket member |l of the wash agitating member l9 upon the top end of. the drive shaft |2'it is merely necessary to align the socket |9 with the top end of the shaft i3 and the pins 22 with the vertical portion 2| of the bayonet slots 2|. The agitating member is is then pressed downwards to urge the disc it downwards against the holding action of the spring i8 to cause the pins 22 to move downwards to an aligned position with the horizontal end portions 2| of the bayonet slots 2|. The agitating member I! is then turned relative to the drive shaft II to cause the pins 22 to move along the horizontal portion 2|" of the bayonet slots to an aligned position with the vertical portions 2| of the bayonet slots 2 l. The agitating member is then released and the action of the spring II will urge the disc II and the agitating member I! upwards relative to the drive shaft it to cause the pins 22 to be engaged against the top wall of the vertical portions 2l' oi the bayonet slots 2|. This is the locked position of the agitating member I! with relation to the drive shaft i2, and as the drive shaft turns the agitating member will turn therewith.

A means is provided for locking the shaft is against rotating when the pins 22 are in an aligned position with thehorizontal portions 2| b of the bayonet slots 2| for permitting the agitating member to be turned relative thereto. This means comprises teeth 24 formed on the outer periphery of the disc I! and which are adapted to engage with complementary teeth 2! formed on a ring 26 mounted upon the vertical walls of v the opening Ill". when the agitating member has pressed the disc I! downwards to a position in which the pins 22 will be aligned with t e horizontal portions 2|" the teeth 2| and 25 w ll be engaged. and since the disc it is keyed to the shaft I! it will be impossible for the shaft It to turn and relative movementbetween the agitating member is and the shaft I! will be possible to permit the pins to be aligned with either vertical portion 2| or 2| of the bayonet slots 2|.

A novel means is also provided for circulating the water through the wash tub It". This means comprises a pipe 2'! connecting with the interior of the wash tub it and with the pump mounted within the container ll. A second pipe 22 extends from the pump and connects with the opening It" as shown in Figs. 2 and 3. The drive shaft I2 is provided with open side walls I! which connect with a vertically extending opening i3 extending through the center'thereof. This vertically extending opening I! connects with a vertically extending opening I! formed in the stem it of the agitating member I. The top end of the vertically extending opening I0 continues in a plurality of branches It, one for each of the arms 4'! of-the agitating member ID. The branches I! connect with the interior of each of the hollow cup-shaped members 20; The bottom face of each cupshaped member is provided with a plurality. of openings 2| through which the water is adapted to again discharge.

A drainage system is also provided for draining the water from the wash tub, the sink and the pump mounted within the container ll. This means comprises a drain pipe 2! extending from the sink Iii and which is provided with a conventional s-shaped trap 29-. An auxiliary drain pipe 30 extends from the interior of the wash tub ill' and is provided with a valve 2| which is adapted to be closed to prevent the loss of water therethrough. A second auxiliary drain pipe 22 extends from the pipe 28 for draining the water from the pump and is provided with a valve 22 for preventing the loss of water therethrough. Each of the branch pipes 3|] and 22 connect with the drain 29 as shown in Fig. 2.

The operation of this invention is as follows:

The agitating member is mounted on the top end of the drive shaft as hereinbefore described. The wash tub "I is then filled with water by opening the taps l2 and l2 of the faucet l2. The clothes to be washed are then placed within the wash tub and the combination motor, gear reduction unit and pump is brought into operation. The operation of the motor will cause the drive shaft if to rotate and also rotate the agitating member IS. The operation of the motor will cause the pump to also operate. As the pump opcrates it will draw water from the wash tub lilthrough the pipe 21. This water will then be discharged back into the tub ||l through the pipe 28 and the aligned openings l2 and I! to discharge through the openings 20 formed in the hollow cup-shaped member 20. This water will be forced from the cup-shaped members 20 under pressure to add to the operation of the agitating member in washing the clothes.

When desired it is possible to use the wash tub i1! without the agitating member I! by merely removing the same from the free end of the drive shaft ii. In this removed position the disc I! will be urged upwards into a flush posi tion with the top face of the bottom wall and the top end of the drive shaft i3 providing a smooth bottom face within the tub I0.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the Precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new, and desire to 'secure by United States Letters Patent is:

. In a washing machine of the class described,

normally having its top face flush with the top face of said bottom wall, resilient means for holdnormal position, means for ingsaiddiscinits holding said disc from turning in a lowered posithroushsaid shaft and slidably mounted thereon and tion, and a. w'ash agitating member for location in said tub and. having a bottom socket portion with pins engageable with said bayonet slots.

2. In a washing machine'of the class described, a tub having a bottom wall, a drive mechanism having a vertical shaft extending through said bottom wall and having its topend flush with the top face, of said bottom wall, and its top portion provided with bayonet slots, a disc keyed on said shaft and slidably mounted thereon and normally having its top face flush with the top face of said bottom wall, resilient means for holding said disc in its normal position, meansfor holding said disc from'turning in a lowered position, and a wash agitating member. for location in said tub and having a bottom socket portion with pins en'gageable with said bayonet slots, said resilient means comprising a spring operating movably mounted on the top end of said shalt,

whereby when desired said wash agitating member may be removed from said tub forming a tub having an interior clear of any obstruction to be usedfor otherpurposes, said removably mounting of said wash agitating member, comprising a with complementary bayonet slots formed on the top end of said shaft, each bayonet slot, comprising a vertical portion extending downwards between the bottom face of said disc and a portion of said tub.

3. In a washing machine of the class described, a'tub having a bottom wall, a drive mechanism having a vertical shaft extending through said bottom wall and having its topend flush with the top face of said bottom wall, and its top portion provided with bayonet slots, a disc keyed on said shaft and slidably mounted thereon and normally having its top face flush with the top face of said bottom wall, resilient means for hold-- ing said disc in its normal position, means for holding said disc from turning in a lowered position, and a wash'agitatin'g member for location in said tub and having a bottom socket portion with pins engageable with said bayonet slots,

"said means for holding said disc comprising teeth formed on the outer periphery of said disc, a ring mounted beneath said disc, and teeth formed on said ring and cooperative with said teeth in lowered position of said disc for holding said disc against rotating.

4. In a washing machine of the class described, a tub having a bottom wall, a drive mechanism from the top end of said vertical shaft, a transverse portion extending from the bottom of said vertical portion, a dead-end vertical portion continuing from the free end of said transverse portion and extending upwards. to a position adiseent the top end of said shaft, and means for urging said wash agitating member into a position in which said pins will abut the two ends of the dead-end vertical portions of said bayonet slots.

6. In a washing machine of the class described, a tub having a bottom wall, a drive mechanism located beneath said bottom wall, a vertical shaft extending from-said drive mechanism through said bottom wall and having its top end flush with the top face ofsaid bottom wall, and a wash agitating member located within said tub and removably mounted on the top end of said shaft, whereby when desired said wash agitating member may be removed from said tub forming a tub having an interior clear of any obstruction to be used for other purposes, said removable mounting of said wash agitating member, comprising a socket formed on the bottom end of said wash agitating member and engageable over the having a vertical shaft extending through said bottom wall and having its top end flush with the top face of said bottom wall, and its top portion provided with bayonet slots, a disc keyed on said shaft and slidably mounted thereon and normally having its top face flush with the top face of said bottom wall, resilient means for holding said disc in its normal position, means for holding said disc from turning in a lowered position, and a wash agitating member for location in said tub and having a bottom socket portion with pins engageable with said bayonet slots, said disc being provided with a projection engaging 'a groove formed in said drive shaft forming the means for keying said disc to said shaft. 5. In a washing machine of the class described, a tub having a bottom wall, a drive mechanism located beneath said bottom wall, a vertical shaft extending from said drive mechanism through said bottom wall and having its top end flush with the top face of said bottom wall, and a wash agitating member located within said tub and retop end of said vertical shaft, inwardly extending pins mounted within said socket and engageable with complementary bayonet slots formed on the top end of said shaft, each bayonet slot,

comprising a vertical portion extending downwards from the top end of said vertical shaft, a transverse portion extending from the bottom of said vertical portion, a dead-end vertical portion continuing from the free end of said transverse portion and extending upwards to a position adjacent the top end of said shaft, and means for urging said wash agitating member into a position in which said pins will abut the two ends of the dead-end vertical portions of said bayonet slots, comprising a disc vertically slidably keyed to said shaft and engageable against the bottom end of said wash agitating member, said disc being located within a recess formed in the bottom wall of said tub, and means within said recess for urging said disc upwards to in turn urge said wash agitating member upwards to cause said bottom wall and having its top end flush with the top face of said bottom wall, and awash agitating member located within said tub and removably mounted on the top end of said shaft, whereby when desired said wash agitating member may be removed from said tub forming a tub having an interior clear of any obstruction to be used for other purposes, said removable to a position adjacent the top end of said shaft,

and means for urging said wash agitating member into a position in which said pins will abut the two ends of the dead-end verticahportions of said bayonet slots, comprising a disc vertically slidably keyed to said shaft and engageable against the bottom end ofsaid wash agitating member, said disc being located within a recess formed in the bottom wall of said tub, and means within said recess for urging said disc upwards to in turn urge said wash agitating member upwards to cause said pins to retain their op-,

erative position within the dead-end vertical portion of said bayonet slots, comprising an expansion spring coaxially mounted upon said shaft and operating between the bottom face of said disc and the bottom. wall of said recess.

8. In a washing machine of the class described, a tub having a bottom wall, a drive mechanism located beneath said bottom wall, a vertical shaft extending from said drive mechanism through said bottom wall and having its top end flushwith the top face of said bottom wall, and a wash agitating member located within said tub and removably mounted on the top end-of said shaft, whereby when desired said wash agitating member may be removed from said tub forming a tub having an interior clear of any obstruction to be used for other purposes, said removable mounting of said wash agitating member, comprising a socket formed on the bottom end of said wash agitating member and engageable over the top end of said vertical shaft, inwardly extending pins mounted within said socket and :ngageable with complementary bayonet slots formed on the top end of said shaft, said bottom. wall being formed with a recess having a diameter greater than said socket so that said socket may be engaged upon'the top end of said shaft, and means for closing the space between the peripheral edge of said shaft and the materialof said bottom wall'around said recess when said wash agitating member is removed from said shaft.

9. In a washing machine of the class described, a tub having a bottom wall, a drive mechanism locatedbeneath said bottom wall, a vertical shaft extending from said drive mechanism through said bottom wall and having its top end flush with the top face of said bottom wall, and a wash agitating member located within said tub and removably mounted on the top end of said shaft, whereby when desired said wash agitating memvber may be removed from said tub forming a tub having an interior clear of any obstruction to be used for other purposes-said removable mounting of said wash agitating member, comprising a socket formed on the bottom end of said wash agitating member and engageable over the top end of saidvertical shaft, inwardly extending pins mounted within said socket and engageabie with complementary bayonet slots formed on the top end of said shaft, said bottom wall being formed with a recess having a diameter greater than said socket so that said socket may be engaged upon the top end of said shaft, and means for closing the space between the peripheral edge of said shaft and the material of said bottom wall around said recess when said wash agitating member is removed from said shaft, comprising a disc slidably mounted on the upper end of said shaft, and resilient means for urging said disc into a position in which its top face will be flush with the flush top face of said tube and shaft.

RUDOLPH Oi WASSMER. 

